DocumentCode :
2488855
Title :
Improved Construction of Low-Density Parity-Check Codes Based on Lattices
Author :
Tao, Xiongfei ; Kim, Jong-man ; Liu, Weizhong ; Kong, Li
Author_Institution :
Huazhong Univ. of Sci. & Technol., Wuhan
fYear :
2007
fDate :
23-24 Nov. 2007
Firstpage :
208
Lastpage :
212
Abstract :
In this paper we construct a class of LDPC codes with girth 10 based on 2-D lattices. The parity check matrix is an incident matrix of lines and points in the lattices. By selection of slope sets, general triangles and quadrangles are removed in the lattices which leads to the corresponding codes have girth no less than 10. The codes are regular, whose column weight is 3. The generated check matrix have quasi-cyclic structure, and the codes show excellent bit error rate(BER) performance over A WGN channels.
Keywords :
error statistics; matrix algebra; parity check codes; bit error rate; low-density parity-check code; parity check matrix; quasicyclic structure; AWGN channels; Computational geometry; Educational institutions; Energy conversion; Information geometry; Information technology; Iterative algorithms; Iterative decoding; Lattices; Parity check codes;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information Technology Convergence, 2007. ISITC 2007. International Symposium on
Conference_Location :
Joenju
Print_ISBN :
0-7695-3045-1
Electronic_ISBN :
978-0-7695-3045-1
Type :
conf
DOI :
10.1109/ISITC.2007.56
Filename :
4410636
Link To Document :
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